The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 1998
Filed:
Sep. 04, 1996
Applicant:
Inventor:
Albertus A Sluyterman, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
348607 ; 348806 ;
Abstract
In a method of reducing a moire phenomenon upon display of a video signal on a display device (4), the video signal is low-pass filtered (2) with a cut-off frequency substantially corresponding to a maximum frequency of a baseband portion of the video signal, to obtain a low-pass filtered video signal. The low-pass filtered video signal is filtered (3) in accordance with a transfer function substantially corresponding to the inverse of the transfer function of the display device, to obtain a filtered signal. Finally, the filtered signal is applied (3a) to the display device (4).